SOLUTION: Using function notation. Find the area, A(x), of a triangle with height of 6x (inches) and base 9x-1 (inches) Find A(50) Really need to see how to work out each step Thanks, Deb

Algebra ->  Functions -> SOLUTION: Using function notation. Find the area, A(x), of a triangle with height of 6x (inches) and base 9x-1 (inches) Find A(50) Really need to see how to work out each step Thanks, Deb      Log On


   

Question 286213: Using function notation. Find the area, A(x), of a triangle with height of 6x (inches) and base 9x-1 (inches) Find A(50)
Really need to see how to work out each step
Thanks, Deb
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
A=1/2*b*h
A(x)=1/2*(9x-1)*(6x)
substitute 50 for every x
A(50)=!/2*(6*50)*((9*50)-1)